It could be a driver bug *if* your talking about a few connections with
low message rates (sub 100 connections with message rates of 5/sec).
This specifically references high message rates ( 8/sec) and/or large
numbers of virtual connections (1). Under these circumstances
with packet
I don't know if this has anything to do with what you are seeing but
recently I had occasion to look at the disk caching code for linux and
it turns out that linux will use ALL available memory for disk cache
and only release it back to the system under very specific circumstances.
I can post a
On Tuesday 11 January 2005 13:10, Michael J. Lynch wrote:
I don't know if this has anything to do with what you are seeing but
recently I had occasion to look at the disk caching code for linux and
it turns out that linux will use ALL available memory for disk cache
and only release it back
Except from whitepaper:
This poses a problem for anyone wanting to use Linux as a communications
server handling a large number of connections or queueing a large number
of messages. The reason is that calling the kernel memory allocator
from a STREAMS driver will not cause disk buffers to be
Here's some additional data. Actually, I don't see mythbackend or
mythfrontend growing at all. It only happens while playing (movie or
live tv). Thanks for the help, can I provide any more data?
Don
Several captures from Top:
TopAtStart.txt
- X started with no other programs running
Forgot to mention this: yes, I have about a gig of swap drive setup on
the box. Is that the swap you meant? Thanks,
Don
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On Monday 10 January 2005 08:26 am, Don Brett wrote:
Here's some additional data. Actually, I don't see mythbackend or
mythfrontend growing at all. It only happens while playing (movie or
live tv). Thanks for the help, can I provide any more data?
Nope. If the processes aren't growing,
OK, maybe I sent everyone on a wild goose chase. Somebody tell me if
this makes sense:
- Start X, Mythbackend, Mythfrontend, and start to play live TV, all is
fine.
- Watch memory and it grows to almost max, but mythfrontend doesn't
increase.
- Stop movie and memory returns to normal.
- Start
